<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
     <div>
     	<table>
     		<tr>
     			<td>下拉1</td>
     			<td>下拉2</td>
     			<td>老师注册</td>
     		</tr>
     	</table>
     </div>
</body>
</html>